Samsung Galaxy S4 Accessories

Samsung's S Band is a waterproof body monitoring bracelet that syncs with the S-health 2.0 app preloaded on the S4.

Samsung's S-health Bluetooth body scale

Samsung's S View case for the S4 has a cutout that allows a user to see updates at a glance.

Samsung is offering extra protection in its Protective Cover+ line.

The Otterbox Defender series is a hard composite, element-sealed shell offering the company's highest level of protection for the S4. The case incorporates a screen protector for the 5-inch 1080p display. Retails will range from $49.95 to $59.95.

Belkin unveiled 11 cases for the S4, all of which will be available in April. The Sartorial wristlet case (shown above, $39.99 suggested retail) has a removable wrist strap, embossed woven material, tab closure, microfiber inner lining and inner pockets. Access to all controls, ports and cameras is provided.

Belkin also announced it will have a Micra Glam Matte polycarbonate case, which features a scratch-resistant form-fitting design, metallic finish, camera cutouts and a $29.99 price tag.

The Otterbox Commuter series is the midrange case for the S4. A thin polycarbonate plastic outer shell adds a layer of silicone and a separate screen protection film. It will retail for $34.95.

Cygnett will have a range of cases for the new smartphone, including its Form hard cases for $19.99. Offered in a variety of high-gloss colors — Sapphire Blue, Ruby Pink, Onyx Black, Diamond White and Emerald Green — the snap-on cases feature a rubberized finish.